Alexan

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:28680
http://www.hmdb.ca/metabolites/HMDB0015122
http://www.genome.jp/dbget-bin/www_bget?drug:D00168
http://www.genome.jp/dbget-bin/www_bget?cpd:C02961
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=6253
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505879
https://www.chemspider.com/Chemical-Structure.6017.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50087289
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=3041
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=28680
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL803
https://zinc.docking.org/substances/ZINC000003795098
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DNC001551
http://www.pharmgkb.org/drug/PA449177
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/AR3
http://www.rxlist.com/cgi/generic3/cytarabine.htm
https://www.drugs.com/cdi/cytarabine.html
https://en.wikipedia.org/wiki/Cytarabine